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WAEC Biology questions: Respiration

25 questions with answers and explanations. Tap an option to check yourself.

AllJAMBWAEC
All topicsCell structure and organisation · 26Cellular activities · 24Co-ordination and control · 27Ecology · 33Evolution · 18Excretion · 22Growth · 18Heredity and variation · 24Nutrition · 30Reproduction · 29Respiration · 25Support and movement · 22Transport · 27Variety of organisms · 28

  1. Question 1· Respiration· WAEC

    The respiratory surface of an insect is formed by the

    Explanation and discussion

  2. Question 2· Respiration· WAEC

    Gaseous exchange in fish takes place through the

    Explanation and discussion

  3. Question 3· Respiration· WAEC

    During a sprint, lactic acid builds up in the leg muscles because

    Explanation and discussion

  4. Question 4· Respiration· WAEC

    Dough rises during bread-making because of

    Explanation and discussion

  5. Question 5· Respiration· WAEC

    Anaerobic respiration in muscles produces

    Explanation and discussion

  6. Question 6· Respiration· WAEC

    During expiration in humans, the diaphragm

    Explanation and discussion

  7. Question 7· Respiration· WAEC

    Which of these gives off the most energy per gram when respired?

    Explanation and discussion

  8. Question 8· Respiration· WAEC

    Gaseous exchange in the human lungs takes place in the

    Explanation and discussion

  9. Question 9· Respiration· WAEC

    The energy-carrying molecule produced in respiration is

    Explanation and discussion

  10. Question 10· Respiration· WAEC

    During inspiration in man, the diaphragm

    Explanation and discussion

  11. Question 11· Respiration· WAEC

    Which of these is a product of anaerobic respiration in human muscles?

    Explanation and discussion

  12. Question 12· Respiration· WAEC

    Yeast respiring anaerobically in dough makes bread rise because it produces

    Explanation and discussion

  13. Question 13· Respiration· WAEC

    The gas that is used up during aerobic respiration is

    Explanation and discussion

  15. Question 15· Respiration· WAEC

    The respiratory quotient (RQ) of carbohydrates is

    Explanation and discussion

  16. Question 16· Respiration· WAEC

    When yeast ferments sugar in the absence of oxygen, the products are

    Explanation and discussion

  17. Question 17· Respiration· WAEC

    The energy released in respiration is stored in the cell as

    Explanation and discussion

  18. Question 18· Respiration· WAEC

    The products of aerobic respiration are

    Explanation and discussion

  19. Question 19· Respiration· WAEC

    Gaseous exchange in plants takes place through

    Explanation and discussion

  20. Question 20· Respiration· WAEC

    Alveoli are efficient for gaseous exchange because they

    Explanation and discussion

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